Natural Language Processing (NLP) is a branch of artificial intelligence (AI) that focuses on the interaction between computers and human languages, allowing computers to understand, interpret, and generate human language. It is used to analyze text, speech, and other forms of language data, and is applied in a wide range of applications such as language translation, text-to-speech synthesis, sentiment analysis, and chatbots. NLP techniques include techniques like tokenization, parsing, text-to-speech, and sentiment analysis. With the growing amount of text data being generated by social media, chat apps and other sources, NLP is becoming increasingly important for businesses, enabling them to gain valuable insights from customer feedback and improve their products and services.